import java.util.HashMap;

public class HashTest {
    public static void main(String[] args) {
        int x1=4;
        int x2=4;
        int x3=5;
        int x4=6;
        int x5=7;
        HashMap<String, Object> map = new HashMap<>();
        map.put("x1",x1);
        String str = "sad";
        System.out.println(str.hashCode());
        System.out.println(map.get("x1").hashCode());
        System.out.println('s' * 31 * 31 + 'a' * 31 + 'd');

    }
}
